Magnetic phase transition and Mossbauer spectroscopy of ErNi2Mnx compounds

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dc.contributor.authorWang, JLen_AU
dc.contributor.authorCampbell, SJen_AU
dc.contributor.authorZeng, Ren_AU
dc.contributor.authorDou, SXen_AU
dc.contributor.authorKennedy, SJen_AU
dc.date.accessioned2011-09-21T03:16:40Zen_AU
dc.date.available2011-09-21T03:16:40Zen_AU
dc.date.issued2011-04-01en_AU
dc.date.statistics2011-09-21en_AU
dc.descriptionProceedings of the 55th Annual Conference on Magnetism and Magnetic Materials, 14-18 November 2010, Atlanta, Georgia.en_AU
dc.description.abstractInvestigation of ErNi(2)Mn(x) with 0.90 <= x <= 1.10 indicates that the MgCu(2)-type structure (with space group Fd-3m) is formed within x = 0.97-1.10. Curie temperature T(C) = 50 K of ErNi(2)Mn is significantly higher than those of the corresponding ErNi(2) (T(C) = 7 K) and ErMn(2) (T(C) = 15 K) compounds. Detailed analyses of DC magnetization data demonstrate that the magnetic phase transition at the Curie temperature is second order. The magnetic entropy change around T(C) has been found to be 4.8 J/kg K for a magnetic field change of 0 to 5 T with its relative cooling power similar to 283 J/kg. (57)Fe Mossbauer spectra below T(C) have been fitted with three sub-spectra representing three inequivalent local magnetic environments while the paramagnetic spectra are fitted using two sub-spectra for two inequivalent crystal sites (8a and 16d), which supports the conclusion based on Rietveld refinement that Mn atoms occupy at both 8a and 16d sites. (C) 2011 American Institute of Physics.en_AU
dc.identifier.articlenumber07E304en_AU
dc.identifier.citationWang, J.L., Campbell, S.J., Zeng, R., Dou, S.X., Kennedy, S.J. (2011). Magnetic phase transition and Mossbauer spectroscopy of ErNi2Mnx compounds. Paper presented at the 55th Annual Conference on Magnetism and Magnetic Materials, 14-18 November 2010, Atlanta, Georgia. In Journal of Applied Physics, 109(7), 07E304. doi:10.1063/1.3535544en_AU
dc.identifier.conferenceenddate18 November 2012en_AU
dc.identifier.conferencename55th Annual Conference on Magnetism and Magnetic Materials, 2010en_AU
dc.identifier.conferenceplaceAtlanta, Georgia.en_AU
dc.identifier.conferencestartdate14 November 2010en_AU
dc.identifier.govdoc3406en_AU
dc.identifier.issn0021-8979en_AU
dc.identifier.issue7en_AU
dc.identifier.journaltitleJournal of Applied Physicsen_AU
dc.identifier.urihttp://dx.doi.org/10.1063/1.3535544en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/3761en_AU
dc.identifier.volume109en_AU
dc.language.isoenen_AU
dc.publisherAmerican Institute of Physicsen_AU
dc.subjectX-ray diffractionen_AU
dc.subjectInorganic compoundsen_AU
dc.subjectMagnetizationen_AU
dc.subjectCurie pointen_AU
dc.subjectSpectroscopyen_AU
dc.subjectCoolingen_AU
dc.titleMagnetic phase transition and Mossbauer spectroscopy of ErNi2Mnx compoundsen_AU
dc.typeConference paperen_AU
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